The rear ramplate is terrible, Fyi. You don't need anything protecting the back because the AI never goes there anyway. I'd try to put on a metal hinge wedge honestly.
I gave a skirt wedge a quick try just now, and it doesn't really do much, the weapon sticks out further than the wedge, so it's effectively useless.
For Comet:
Use the low chassis glitch to put on NPCs with Hypnodisc wheels. It should be invertible.
Don't stack ant batteries, it's unrealistic and you don't need a third ant anyway.
Comet is actually invertible as it is, but like I said I've already got a few ideas for Comet II that should make it far more effective.
As for the batteries, realistically they wouldn't be locked in either a vertical or horizontal position and permanently stuck in rows of three, it looks to me like there is plenty of space for nine batteries in that space. The chassis should be designed to fit everything in better on Comet II anyway, so I wont need to stack the batteries.
Use extenders, not a disc, to attach weapons.
Use razor tips as weaponry instead of pole spikes. Or Small DS teeth. Either one works.
I realised that the disc was a problem pretty early on, that was one thing I already planned to changed in Comet II.
As for razors, I was using them originally but they broke off far to easily, when I switch to extenders rather than a disc I should have more than enough razors to make up for that.
Try dropping the Vertical Spinners armor down to something like TI3 and using two perm 80's, instead of the single E-tek.
Thanks, I'll give that a go soon, the weapon's acceleration is pretty lousy to be honest.
Edit: I've had a go at putting Perms instead of the E tek, but I can't seem to find any way to use them that doesn't put the discs too far apart, what exactly did you have in mind?